Yaskawa Sigma-5 User Manual: Design and Maintenance - Rotary Motors User Manual

Page 172

5.5 One-parameter Tuning (Fn203)

5-35

Adjustments

Adjust the responsiveness by changing the FF and FB
levels.
Press the

Key to display the present level. Move

the cursor with the

Key and change the set value

with the with the

Keys.

After the setting is changed, press the

Key.

The higher the level, the greater the responsiveness
will be. If the value is too large, however, vibration
will occur.
If that occurs, press the

Key. The SERVOPACK

will automatically detect the vibration frequencies
and make notch filter or anti-resonance control set-
tings. When the notch filter is set, “NF1” or “NF2”

will be displayed on the bottom row.
When the anti-resonance control is set, “ARES” is

displayed.
Notes:

• If the vibration is great, the vibration frequency

will be detected even if the

Key is not pressed

and a notch filter or anti-resonance control will be
set.

• The higher the FF level, the shorter the positioning

time will be. If the level is too high, however, over-
shooting will occur.

• If the FF level is changed when the servomotor is

stopped and no reference is input, this new value
will be effective, and the servomotor’s responsive-
ness will be changed. To safely adjust the FF level,
wait until all operations have been completed and
check the responsiveness. When the FF level is
changed largely, vibration may occur because the
responsiveness is changed rapidly.

• The message, “FF LEVEL”, blinks until the

machine reaches the effective FF level. If the ser-
vomotor does not stop approximately 10 seconds
after the FF level is changed, the setting is no
longer effective and will automatically return to the
previous setting.

• If the vibration is too small, the SERVOPACK may

not automatically detect the vibration frequencies.
If so, press the

Key to forcibly start the detec-

tion.

Press the

Key. A confirmation screen is dis-

played after level adjustment.

• Press the

Key. The adjusted values will be

written to the SERVOPACK, “DONE” will be dis-
played for approx. 2 seconds, and then “RUN” will
be displayed.

• Not to save the values set in step 7, press the

Key.
The screen in step 7 will appear with the

Key.

Press the

Key to complete the one-parameter

tuning operation. The screen in step 1 will appear
again.

(cont’d)

Step

Display after Operation

Keys

Operation

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